JP2008052464A - Vehicle suppression device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To support the initial investigation of police by suppressing the traveling of a target vehicle by gradually decreasing a green light time, and increasing a red light time based on the traffic light control parameter of a vehicle travelling range concerning a traffic light installed in a vehicle traveling direction to a preliminarily registered target vehicle. <P>SOLUTION: This vehicle suppression device is provided with a traveling prediction device in a central communication control room for calculating the predicated traveling range of the vehicle based on the license plate information of a vehicle recognition camera installed on a road, and the predicted traveling information is transmitted to a traffic control center. The traffic control center is provided with a data processor for storing hit location information of the license plate, and predicted traveling information and for calculating a control parameter for extending the red signal time of the traffic light. Thus, it is possible to suppress the target vehicle by controlling the traffic light of the vehicle traveling range. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle deterrent device linked to traffic signal control using a license plate recognition device using a camera installed on a road or the like and using a license plate recognition result of a vehicle traveling on the road.

  As an apparatus for automatically recognizing a license plate, as described in [Patent Document 1], a plate is cut out, a serial number is cut out at a maximum of 4 digits, and various codes (land transportation branch code and vehicle type code, application code) are cut out in an area, Some characters are recognized by the procedure for recognizing each character.

  As for the device for monitoring the vehicle on the road, as described in [Patent Document 2], a system including a vehicle number recognition device that automatically recognizes a vehicle number plate is installed in various places. Some of them are applied to a system that recognizes a license plate of a vehicle passing through the vehicle and detects a violating vehicle, a stolen vehicle, or a criminal vehicle based on the recognition result.

  As described in [Patent Document 3], as a communication command device that calculates a predicted range of a escape vehicle and appropriately deploys a guard vehicle, a fixed time is determined based on the location of the guard vehicle based on the location and time of the incident. By calculating the possible escape range every time, receiving dynamic traffic information from the traffic control organization, and calculating the possible escape range taking this traffic information into account, the current deployment status and dynamic traffic There is something that takes into account information.

  In addition, as described in [Patent Document 4], for a search vehicle detected automatically, the search vehicle ID is registered and the search vehicle ID transmitted while the search vehicle travels is monitored to track the position. Some control a traffic signal controller arranged on a route expected to travel to prevent the search vehicle from proceeding.

JP-A-6-215293 Japanese Patent Laid-Open No. 10-162288 JP-A-9-146916 JP-A-10-188192

  In the conventional technology, the license plate information of the vehicle detected by the camera installed on the road matches the license plate information of the arrangement vehicle (theft vehicle or criminal vehicle) registered in advance, and based on the information hit at that point A system for notifying an alarm and rushing a police vehicle to the place of occurrence as an initial investigation is disclosed.

  However, in this conventional technique, it takes time until the police vehicle arrives at the point when it is a high-speed vehicle of the arrangement vehicle, when the police vehicle is away from the vicinity of the hit point without exceeding the speed. In some cases, there is a problem of missing the escape vehicle.

  In addition, in the conventional technology, it is described that dynamic traffic information (traffic regulation information and traffic jam information) from the traffic control center can be received and an accurate guard vehicle can be arranged. Is installed, there is a problem that the traffic regulation and traffic jam information can be received under the same conditions as the guarded vehicle, and the guarded vehicle may escape to another point before arrival at the site.

  To solve such problems, increase the number of police vehicles, and install vehicle recognition cameras along all major routes and at each intersection in order to predict the moving and hiding points of escape vehicles. However, this method is expensive due to the introduction of police vehicles and vehicle recognition cameras, labor costs, etc. In addition, a checkpoint may be set up in the vehicle's travel range (fleeing range), and the vehicle may be temporarily stopped and investigated one by one, but the traffic situation on the route deteriorates, resulting in traffic congestion and general vehicles. Economic loss and environmental adverse effects.

  A first object of the present invention is to provide a vehicle deterrence method and apparatus capable of supporting the initial investigation of the police by suppressing the introduction cost as much as possible, predicting the traveling range of the traveling vehicle, and deterring the traveling vehicle. It is to provide.

  A second object of the present invention is to provide a vehicle deterrence method and an apparatus thereof that are less likely to be noticed by a driver of a vehicle being arranged.

  In order to achieve the above object, the vehicle deterrence method and apparatus thereof according to the present invention predicts the travel range of the arranged vehicle from the number information from the vehicle recognition camera and the number information of the arranged vehicle registered in advance, It controls the traffic signal in the direction step by step.

  In addition, from the number information from the vehicle recognition camera, the predicted range information of the arranged vehicle is calculated by the travel prediction device from the license plate information, hit position information, and vehicle speed information, which is vehicle hit information, and installed within the predicted range. This is achieved by providing a signal control unit for executing signal control for shortening the blue time and extending the red time for the existing traffic signal.

  In addition, it is difficult to notice from the driver. Instead of forcibly stopping the car until the traffic situation is disturbed by inspection, the signal control of the traffic signal that is close to the vehicle specified by the license plate recognition result. This is a system that is difficult for the driver to notice because of vehicle deterrence.

  By suppressing the escape of the arranged vehicle, the police can support the initial investigation. Moreover, the introduction cost can be suppressed by using the existing infrastructure, and a system that is difficult for the driver of the arranged vehicle to be noticed can be constructed.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall configuration diagram of a vehicle deterrence system according to the present embodiment. FIG. 2 is a diagram showing an example of a map monitor referred to by the operator in the general communication command room, and is a screen example when the number information registered by the operator matches the camera recognition result and hit. FIG. 3 is a screen example showing escape prediction information after a hit. FIG. 4 is an example of a screen when a hit is made at another point after the escape range is displayed in FIG. FIG. 5 is a diagram showing a configuration example of the general communication command room in FIG. FIG. 6 is a diagram showing a configuration example of the traffic center in FIG. FIG. 7 is a flowchart of the signal control unit in FIG.

  As shown in FIG. 1, the vehicle deterrence system includes a central processing unit 4 that calculates a collation result between recognition information from the vehicle recognition camera 8 and arranged vehicle information, and a travel prediction of the arranged vehicle from the calculation result of the central processing unit 4. A comprehensive communication command room 1 having a travel prediction device 5 for calculating a range, a data processing device 6 for determining a control range of the traffic signal 9 in the arrangement range based on the travel prediction information calculated by the travel prediction device, and The traffic control center 2 is provided with a signal control unit 7 that determines control parameters of the traffic signal 9 to be transmitted.

  The vehicle recognition camera 8 is connected to the general communication command room 1 via the public communication line 3, and a number recognition result from an image photographed by the vehicle recognition camera 8 is transmitted to the central processing unit 4. In the general communication command room 1, the transmitted number recognition result and the arranged vehicle registration information are collated, the travel prediction device 5 calculates the traveling range of the arranged vehicle using the processing result, and transmits it to the traffic control center 2. . Based on the transmitted travel prediction information, the traffic signal control range of the arrangement range is calculated by the data processing device 6 of the traffic control center 2.

  The traffic signal 9 is connected to the traffic control center 2 via the public communication line 3, and the signal control unit 7 determines the signal control parameter based on the control range calculated by the data processing device 6, and the control range To the traffic signal 9 inside.

  FIG. 2 is a diagram illustrating an example of a map monitor that an operator refers to in the general communication command room 1. In addition to the latest road map information, icons on the map monitor screen are displayed so that the operator can grasp the position of the camera and the position of the police vehicle. When the number information of the arranged vehicle registered by the operator matches the camera recognition result, the hit point position is displayed as hit information on the centering of the map monitor, and details of the hit information as guidance, such as a registration number, a reading number, Hit point information etc. are displayed.

  The display screen shown in FIG. 3 is an example in the case where it is displayed as additional information on the map monitor after a hit. After the hit, the escape prediction information, that is, the camera direction, the camera number, the distance to the camera, and the prediction range, for example, the display of the radius nkm from the hit point is displayed from the information calculated by the travel prediction device 5 in the general communication command room 1. The In addition, a list of signalized intersections within the prediction range is displayed.

  Such information is effective as auxiliary information for initial investigation for emergency deployment by police vehicles. When a police vehicle is urgently deployed, information on the deployment is input by an operator and displayed on a map monitor.

  FIG. 4 is a screen example when the arranged vehicle is hit at another point after the elapse of the time after the escape range is displayed in FIG. In the central processing unit 4 of the general communication command room 1, when the same number information newly recognized at another point matches the collation result, the information is notified to the operator of the latest hit information and newly The calculated escape range is calculated by the travel prediction device 5, and the travel range information is transmitted to the traffic control center 2. At that time, the previous travel range information is canceled and the signal parameters of the traffic light 9 in the control area of the previous arrangement range are restored. By controlling in this way, it is possible to return to normal traffic control sooner.

  FIG. 5 is a diagram showing a detailed configuration of the central processing unit 4 provided in the general communication command room 1. As shown in FIG. 5, the general communication command room 1 receives the number information of the vehicle recognition camera 8, and the number information received by the receiving unit 41 is stored in the data holding unit 42. The arrangement information processing unit 43 processes arrangement vehicle information registered in advance by the operator, that is, the place of occurrence, the time of occurrence, the number information, the incident case, and the like, and stores them in the data holding unit 42 as registration information. The data stored in the data holding unit 42 is collated with number information by the collation unit 44. The collation unit 44 collates the number information from the vehicle recognition camera 8 with the arrangement vehicle registration information from the operator processed by the arrangement information processing unit 43, and transmits the collation result to the hit information transmission unit 45. The hit information transmission unit 45 is a unit that receives the collation result from the collation unit 44 and transmits the hit information to the map data editing unit 46 and the travel prediction device 5.

  The map data editing unit 46 is a map data editing unit that processes the map data 47 in order to display the hit information from the hit information transmission unit 45 and the escape prediction information calculated by the travel prediction device 5. The map data 47 is map data used for calculating road map data to be normally displayed, position information of the vehicle recognition camera 8 and the police vehicle, and traffic signals and escape areas in the area.

  FIG. 6 is a configuration diagram of a device provided in the traffic control center 2 installed in the police station. As shown in FIG. 6, the traffic control center 2 includes a travel range receiver 10 that receives travel range information from the general communication command room 1, and traffic signal control based on the travel range received by the travel range receiver 10. The data processing device 6 determines the range, and the signal control unit 7 determines the control parameter for the traffic signal 9 on the road.

  In the signal control unit 7, a signal control parameter for shortening the blue time of the traffic light and extending the red time is calculated by the arranged vehicle inhibition signal control means 71, and is transmitted to the traffic signal device 9 within the control range by the signal control unit 7. Further, the arranged vehicle suppression signal control means 71 is a signal that controls stepwise with respect to the traffic signal 9 at a point far from the hit point of the vehicle based on the speed information of the traveling range information received from the general communication command room 1. Control parameter calculation means is provided.

  Here, the determination of the control range is performed in consideration of the progress information of the emergency-deployed police vehicle. A signal control parameter of a traffic signal located on the route to the arrival point of an emergency-deployed police vehicle is calculated, and control is performed to shorten the red time and extend the blue time. By controlling in this way, the progress of the emergency-deployed police vehicle is not hindered and can arrive at the scheduled point early.

  FIG. 7 shows a flowchart of the signal control unit 7. In step 100, the control range information of the traffic signal 9 and the speed information of the arranged vehicle information are read from the data processing device 6, and the distance of the nearest intersection from the hit point is calculated. At the calculated intersection, the arranged vehicle suppression control parameter is executed by interrupting the current signal display parameter in the traffic signal 9 near the intersection to shorten the blue time and extend the red time.

  In step 101, the distance from the hit point is calculated with respect to the traffic signal 9 at another point in the control range, and the parameter for extending the red time by the interruption processing after the estimated arrival time by the arrangement vehicle suppression signal control means 71 is set. Execute. The same procedure is executed for all traffic lights 9 in the control area.

  In step 102, the signal control unit 7 determines whether or not the arrangement is canceled in the general communication command room 1 due to an excess of time after emergency deployment, arrangement vehicle clearance, etc. In Step 106, a signal control release command is transmitted to the traffic signal device 9 to release a series of operations.

  If the time is not exceeded and the arrangement is not canceled, the arranged vehicle restraint control is executed in step 103, the number of traffic signals within the control range is confirmed in step 104, and if it is less than 1, the process proceeds to step 106 and a series of operations are performed. To release.

  As described above, according to the present embodiment, the vehicle recognition camera recognizes the vehicle number, and based on the arrangement vehicle information, the signal blue time of the control parameter of the traffic light is shortened and the red time is extended, thereby suppressing the arrangement vehicle. Thus, it is possible to construct a low-priced and economical system that supports the initial investigation of the police and is difficult for the driver of the arranged vehicle to notice.

BRIEF DESCRIPTION OF THE DRAWINGS The whole block diagram of the vehicle suppression system which is one Example of this invention. The figure which shows an example of the map monitor which an operator refers in the general communication command room. Screen example showing escape prediction information after hit. Example screen when hit at another point after displaying the escape range. The figure which showed the structural example of the general communication command room. The figure which showed the structural example of the traffic control center. The signal control part flowchart.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... General communication command room, 2 ... Traffic control center, 3 ... Public communication line, 4 ... Central processing part, 5 ... Travel prediction apparatus, 6 ... Data processing apparatus, 7 ... Signal control part, 8 ... Vehicle recognition camera, 9 ... traffic signal, 10 ... progress range receiving unit, 41 ... receiving unit, 42 ... data holding unit, 43 ... arrangement information processing unit, 44 ... collation unit, 45 ... hit information transmitting unit, 46 ... map data editing unit, 47 ... Map data, 71 ... Arrangement vehicle inhibition signal control means.

Claims (6)

  A travel prediction device that receives number information from images taken by a vehicle recognition camera installed at a plurality of points on a road, identifies an arrangement vehicle from the number information, and predicts a travel range of the specified arrangement vehicle; and Receiving the predicted travel information, hit position information, vehicle speed information, and emergency deployment police vehicle information predicted by the travel prediction device, calculate signal control parameters for traffic lights within the vehicle travel prediction range. A vehicle deterrence device comprising: a data processing device; and a signal control device that executes stepwise control on the traffic signal within the vehicle travel prediction range based on a signal control parameter from the data processing device.   From the collation result of the number information from the vehicle recognition camera and the number information of the arranged vehicle registered in advance by the general communication command room, the hit information is updated to the arranged vehicle by the travel prediction device. The vehicle deterrence device according to claim 1, wherein the vehicle prediction is updated.   The vehicle deterrence device according to claim 1, wherein a signal for returning the signal control parameter to the original state is notified to the traffic control center when the number information of the arranged vehicle by the operator is canceled or the time after the hit is exceeded.   The vehicle deterrence device according to claim 1, wherein when the same arranged vehicle is hit at another point, the prediction range of the arranged vehicle is changed and a signal for canceling the arrangement to the previous hit point is notified to the traffic control center.   Receive hit number information, hit position information, vehicle speed information, and predicted vehicle range information from the general communication command room, and reduce the blue time and red time for traffic lights in the vehicle traveling range with the data processor. The vehicle deterrence device according to claim 1, wherein a signal control parameter to be extended is calculated.   6. The vehicle deterrence device according to claim 5, further comprising a data processing device that changes the signal control parameter stepwise in accordance with the speed of the arranged vehicle that hits the traffic signal within the vehicle traveling range.

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